... ROHS Standard; non-toxic; OEM orders are welcome. Rubber X-rings with high quality: 1)Strictly according to the ASTM20052)Excellent ... temperature, oil, water, tensile, elongation, and has a good compression set, etc. MaterialNBR, EPDM, SILICONE(MVQ), Viton(FPM), HNBR, ACM, PU ... Lead-Time15-30daysPayment TermT/T Customer’ s designwelcome Rubber X-rings with high quality